Dictionary & data

[Garry Knight]

In message <mqK5c.22047$8G2.9439 at fe3.columbus.rr.com>, kbass wrote:

> I have retrieved data from a database and I want to place this data into a
> dictionary or something like a HashMap (in Java).  Can someone point me to
> an example?

Here's most of what you'll need to handle dictionaries:

d1 = {}                         # create empty dictionary
d2 = {"one": 1, "two": "two", 3: "three"} # create and populate dictionary
d3 = {1: 'spam', {'a': 'b'}}    # nesting
d2["two"] = 42                  # adding, changing
d3[1]['a'] = 'c'                # changing value in nested dictionary
x = d2['two']                   # fetch using index
y = d3[1]['a']                  # fetch from nested dictionaries
cnt = len(d2)                   # get no. of key/value pairs
del d2[3]                       # remove key/value
for k in d2.keys():             # loop over keys
for v in d2.values():           # loop over values
for k,v in d2.items():          # loop over key/value pairs
d = d2.keys; d.sort()           # get sorted list of keys

It's probably a good idea to work your way through the tutorial here:
http://www.python.org/doc/2.3.3/tut/tut.html

-- 
Garry Knight
garryknight at gmx.net  ICQ 126351135
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